Woodworking-machine



(No Model.)

J.H.SOARS..

WOODWORKING MACHINE.

No. 516,776. Patented Mar, 20, 1894.

NITED STATES JOHN H. SOARS, OF MUNOY, PENNSYLVANIA.

ATENT OFFICE.

WOODWORKlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 516,776, dated March20, 1894.

pp ication fil July 1 I893. SerialNo-4'79,348. (No model) To all whom itmay concern:

, Be it known that I, JOHN H. SOARS, a citizen of the United States,residing at Muncy, 1n the county of Lycoming and State of- Pennsylvanla,have invented a new and useful Woodworking-Machine, of which thefollowing is a specification.

My invention relates to improvementsin wood working machines in whichrevolving heads are used for any kind of planing purposes, and theobjects of my improvement are; first to obtain smoothness of surfaceplaned; second, a continuous cut; and third a lessening of powerrequired to operate the machine. I attain these objects by the mechanismillustrated in the accompanying drawings, in which- Figure 1 is avertical view of a cutter head; Flg. 2, the knife used thereon, and Fig.3 a perspective view of the face.

Similar letters refer to similar parts throughout theseveral Views.

B. is the body of the head; A. the opening through the body of the headfor the recept1on of the shaft; D. two set screws, by which the head isfastened on the shaft and H. the

I top of the head.

F. is a solid lip, of which there are two on the body of the head,opposite each other, haying onits top or upper side, placed at asuitable angle from the body of the head, a plain or flat surface fromthe body of the head to its outer edge and being spiral lengthwise andradial in any plane of cross section. On this plain or fiat spiralsurface the adj ustable knife E. is fastened by the knife bolts O. Thebottom or under side of the lip F. is milled out in a spoon shapeforming a chip breaker.

E. is an adjustable knife, of which there are two, one being placed oneach lip, F. and havlng a plain or flat surface transversely, andsplrally twisted longitudinally, its cutting side being much longer thanthe opposite one,

and is beveled backwardly on its top or up-- per side. There are slotsG. therein by which they are adjusted to the lips F, and fastened by theknife bolts 0. The chips or shavings made by this knife are dischargedfrom the bottom of the head instead of being thrown out as in mostheads, and by extending the ad ustable knife E. past the center, Isecure a continuous cut as one knife will always reach the surface to beplaned just before the other has left it; and I will also largely alsosecure a draw out which I believe to be smoother and to require lesspower than any other kind of cut.

The cutter head, Fig. 1, is intended for panel raising, and upon the topof its head H. may be placed any of the required devices. These cutterheads may be made of any required size and length to fit the severalwood working machines and do the necessary Work.

I am aware that prior to my invention cutter heads for wood workingmachines have been made, I therefore do not claim such a machinebroadly, but 1 What I do claim as my invention, and desire to secure byLetters Patent, is-

1. In a cutter head for wood working machines a solid lip, F. having onits top or upper side, placed at a suitable angle, a plain or fiatsurface from the body of the head, to its outer edge and spirallengthwise and radial to the head in any plane of cross section. Allsubstantially'as set forth.

2. In a cutter head for wood working machines an adjustable flat curvedblade E. spiral longitudinally and radial to the head viewed in anyparticular plane of cross section, beveled backwardly on its top orupper side and having slots G. therein for adjusting the knife. Allsubstantially as described.

3. In a cutter head for wood working machines the combination of a solidlip F. having on its top or upper side placed at a suitable angle aplane or flat surface from the body of the head to its outer edge, beinghaving slots G. therein for adjusting the knife on the lip F. andfastened thereon by the use of knife bolts 0. passing through the slotsG. into the lip F. All substantially as described.

JOHN H. SOARS.

-- Witnesses:

S. L. KooNs,

ANTHONY FIALA, .Ir.

